The Fat Ass as we lovingly call it began in 2003 with 23 participants who didn't quite know what they had gotten themselves into and who fell in love with running the trails of the Batawa area. Over the years the Fat Ass has grown to be one of the biggest trail races in Ontario, and despite the size of it, we maintain the inclusive atmosphere so everyone feels welcome; fast, slow, young, old, runners and walkers. We have various distances, with various start times:
- Bad Ass 6 Hour- 730am
- 50km- 8am
- 25km- 915am
- 17.5km-1030am
- 10km- 12pm
- 7.5km- 1pm
- 5.5km- 2pm
- Big Bum Kids' 1km- 130pm
Registration fees
Bad Ass 6 Hour 96 spots remaining
6 Hour timed event- as many times around the 7.5 km loop as you can finish in 6 hours.
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Register for Bad Ass 6 Hour$70.00
50K 96 spots remaining
5 times around the 10 km (ish) north loop.
25K 95 spots remaining
South Loop (7.5km), North Loop (10km), South Loop (7.5km)
17.5k 97 spots remaining
South Loop (7.5km), then North Loop (10km)
10k 97 spots remaining
North Loop only
7.5k 96 spots remaining
South Loop
5.5k 96 spots remaining
South Loop
Big Bum Kids' Run
1km kids' race
Contact information
- Event contact
- Erin McDougall, Naomi Coker
- Phone
- 6134031832
- Website
- Visit website
